<script setup>
import { articleAddService, articleCategoryListService, articleDeleteService, articleEditService, articleListWithConditionService } from '@/api/article'
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'
import { ref } from 'vue'
import { Plus } from '@element-plus/icons-vue'
//导入token
import { userTokenStore } from '@/store/token'
const tokenStore = userTokenStore();
import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'
import { ElMessage,ElMessageBox } from 'element-plus'

//文章分类数据模型
const categorys = ref([
    {
        "id": 3,
        "categoryName": "美食",
        "categoryAlias": "my",
        "createTime": "2023-09-02 12:06:59",
        "updateTime": "2023-09-02 12:06:59"
    },
    {
        "id": 4,
        "categoryName": "娱乐",
        "categoryAlias": "yl",
        "createTime": "2023-09-02 12:08:16",
        "updateTime": "2023-09-02 12:08:16"
    },
    {
        "id": 5,
        "categoryName": "军事",
        "categoryAlias": "js",
        "createTime": "2023-09-02 12:08:33",
        "updateTime": "2023-09-02 12:08:33"
    }
])
//文章列表数据模型
const articles = ref([
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
])
//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(3)//每页条数
//用户搜索时选中的分类id
const categoryId = ref('')
//用户搜索时选中的发布状态
const state = ref('')
//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content: '',
    state: ''
})
//使用标题共用编辑框
const title = ref('');
const MyquillEditor = ref(null);

//获取文章分类列表
const getArticleCategory = async () => {
    let result = await articleCategoryListService();
    if (result) {
        categorys.value = result.data;
    }
}
getArticleCategory();
//获取文章详情
const getArticleWithCondition = async () => {
    //处理数据
    let params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null
    }
    let result = await articleListWithConditionService(params);
    if (result) {
        // console.log(result);
        total.value = result.data.total;
        articles.value = result.data.items;
        // articles.value = result.data;
    }

    //处理分类内容,扩展一个属性categoryName
    for (let i = 0; i < articles.value.length; i++) {
        let article = articles.value[i];
        for (let j = 0; j < categorys.value.length; j++) {
            if (article.categoryId === categorys.value[j].id) {
                articles.value[i].categoryName = categorys.value[j].categoryName;
            }
        }
    }
}
getArticleWithCondition();
//上传回显函数
const uploadSuccess = (result) => {
    articleModel.value.coverImg = result.data;
    // console.log(articleModel);
    // console.log(result.data);
}
//有条件搜索
const searchArticle = () => {
    getArticleWithCondition();
    ElMessage('获取成功');
}
//无条件搜索
const searchArticleWithNoCondition = () => {
    categoryId.value = null;
    state.value = null;
    getArticleWithCondition();
    ElMessage('获取成功');
}
//展示添加drawer
const showAddDrawer = () => {
    clearData();
    // console.log('第一次打印')
    // console.log(articleModel.value);
    // articleModel.value.content = null;
    // console.log('第二次打印')
    // console.log(articleModel.value);
    title.value = '添加文章';
    visibleDrawer.value = true;
}
//展示编辑drawer
const showEditDrawer = (row) => {
    title.value = '编辑文章';
    visibleDrawer.value = true;    
    //显示数据
    articleModel.value.title = row.title;
    //这个只要有数据就可以显示
    articleModel.value.coverImg = row.coverImg;
    articleModel.value.content = row.content;
    articleModel.value.categoryId = row.categoryId;
    //扩展id属性
    articleModel.value.id = row.id;
}
//添加文章
const addArticle = async () => {
    console.log(articleModel);
    let result = await articleAddService(articleModel.value);
    ElMessage(result.message ? result.message : '添加成功');
    visibleDrawer.value = false;
    //保持条件查找
    getArticleWithCondition();
}
//编辑文章
const editArticle = async () => {
    let result = await articleEditService(articleModel.value);
    ElMessage(result.message ? result.message : '添加成功');
    visibleDrawer.value = false;
    //保持条件查找
    getArticleWithCondition();
}
//发布文章，设置发布状态：已发布|草稿
const publishArticle = (choosedState) => {
    articleModel.value.state = choosedState;
    title.value === '添加文章' ? addArticle() : editArticle();
}
//清空数据回显
const clearData = () => {
    articleModel.value.title = '';
    articleModel.value.categoryId = '';
    articleModel.value.coverImg = '';
    if (MyquillEditor.value) {
    MyquillEditor.value.getQuill().setText(''); // 清空内容
  }

}
//删除文章
const deleteArticle = async (id) => {
    let result = await articleDeleteService(id);
    ElMessage(result.message ? result.message : '删除成功');
    getArticleWithCondition();
}
//删除文章弹窗
const deleteArticleBox = (id) => {
    ElMessageBox.confirm(
        '您确定要删除这篇文章吗',
        '注意',
        {
            confirmButtonText: '删除',
            cancelButtonText: '取消',
            type: 'warning',
        }
    )
        .then(() => {
            deleteArticle(id);
        })
        .catch(() => {
            ElMessage({
                type: 'info',
                message: '删除取消',
            })
        })
}
//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size;
    getArticleWithCondition();
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num;
    getArticleWithCondition();
}
</script>

<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click="showAddDrawer()">添加文章</el-button>
                </div>
            </div>
        </template>
        <!-- 搜索表单 -->
        <el-form inline>
            <el-form-item label="文章分类：">
                <el-select placeholder="请选择" v-model="categoryId" style="width: 100px;">
                    <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：">
                <el-select placeholder="请选择" v-model="state" style="width: 100px;">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="searchArticle()">搜索</el-button>
                <el-button @click="searchArticleWithNoCondition()">重置</el-button>
            </el-form-item>
        </el-form>
        <!-- 文章列表 -->
        <el-table :data="articles" style="width: 100%">
            <el-table-column label="文章标题" width="400" prop="title"></el-table-column>
            <el-table-column label="分类" prop="categoryName"></el-table-column>
            <el-table-column label="发表时间" prop="createTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="showEditDrawer(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger" @click="deleteArticleBox(row.id)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5, 10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end" />
        <!-- 抽屉 -->
        <el-drawer v-model="visibleDrawer" :title="title" direction="rtl" size="50%">
            <!-- 添加/编辑文章表单 -->
            <el-form :model="articleModel" label-width="100px">
                <el-form-item label="文章标题">
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">
                    <!-- 
                        auto-upload自动上传
                        action:接口路径
                        name:设置的文件字段名
                        header：token
                        on-success成功回调函数
                    -->
                    <el-upload class="avatar-uploader" :auto-upload="true" :show-file-list="false" action="/api/upload"
                        name="file" :headers="{ 'Authorization': tokenStore.token }" :on-success="uploadSuccess">
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>
                <el-form-item label="文章内容">
                    <div class="editor">
                        <quill-editor ref="MyquillEditor" theme="snow" v-model:content="articleModel.content" contentType="html">
                        </quill-editor>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="publishArticle('已发布')">发布</el-button>
                    <el-button type="info" @click="publishArticle('草稿')">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>
    </el-card>
</template>
<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

/* 抽屉样式 */
.avatar-uploader {
    :deep() {
        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .el-upload {
            border: 1px dashed var(--el-border-color);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: var(--el-transition-duration-fast);
        }

        .el-upload:hover {
            border-color: var(--el-color-primary);
        }

        .el-icon.avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            text-align: center;
        }
    }
}

.editor {
    width: 100%;

    :deep(.ql-editor) {
        min-height: 200px;
    }
}
</style>